The Utah State Board of Education (USBE) hired the Evalution and Training Institute (ETI) to conduct a three-year evaluation of the High-Quality School Readiness Expansion (HQSR-E) program to determine how participation in high-quality preschool programs impacted children’s school readiness. In 2018-2019, the third year of the evaluation, we focused on answering the following four overarching research questions: 1. Did high-quality preschool children have better early literacy skills at entry to kindergarten compared to children who were not enrolled in a high-quality preschool program? 2. Did high-quality preschool children have better early math skills at entry to kindergarten compared to children who were not enrolled in a high-quality preschool program? 3. What were the social-emotional development skills of program children at the conclusion of the preschool year? 4. Did children who received a high-quality preschool program result in stronger school-based literacy outcomes during beginning, middle, and end of first grade compared to a group of peers matched in terms of demographics characteristics who were not enrolled in a high-quality preschool program? (author abstract)